Phyllonorycter ledella is a moth of the family Gracillariidae. It is known from Québec, Canada, and California, United States.Global Taxonomic Database of Gracillariidae (Lepidoptera) The species is listed as endangered in Connecticut."Connecticut's Endangered, Threatened and Special Concern Species 2015". State of Connecticut Department of Energy and Environmental Protection Bureau of Natural Resources. Retrieved 19 January 2018.
The wingspan is 9–10 mm.
The larvae feed on Rhododendron columbianum.Aquatic Dicotyledons of North America: Ecology, Life History, and Systematics By Donald H. Les They mine the leaves of their host plant.
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